/*
 * This is Melet, a salary slip designer. Feed it with data regarding to salary payment, prepare it for print through the graphical presentation, and you have it done.
 * Copyright (C) 2014, AFDiaX
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * This program is based on UMLet, a Free UML Tool for Fast UML Diagrams.
 * To contact the authors of UMLet visit https://code.google.com/p/umlet/people/list
 * To contact the authors of Melet visit https://gna.org/users/gabocze
 */
package com.baselet.element.facet.specific;

import com.baselet.diagram.draw.DrawHandler;
import com.baselet.diagram.draw.helper.ColorOwn;
import com.baselet.element.facet.KeyValueFacet;
import com.baselet.element.facet.PropertiesParserState;

public class SubStateSymbolFacet extends KeyValueFacet {

	public static final SubStateSymbolFacet INSTANCE = new SubStateSymbolFacet();

	private SubStateSymbolFacet() {}

	private enum SubStateSymbolEnum {
		SUBSTATE
	}

	@Override
	public KeyValue getKeyValue() {
		return new KeyValue("symbol",
				new ValueInfo(SubStateSymbolEnum.SUBSTATE, "draw a substate symbol in the lower right corner"));
	}

	private static final int DIST_RIGHT = 15;
	private static final int DIST_BOTTOM = 5;

	@Override
	public void handleValue(String value, DrawHandler drawer, PropertiesParserState state) {
		drawer.setDrawDelayed(true);
		ColorOwn prevBackgroundColor = drawer.getStyle().getBackgroundColor();
		drawer.setBackgroundColor(ColorOwn.TRANSPARENT);
		SubStateSymbolEnum symbol = SubStateSymbolEnum.valueOf(value.toUpperCase());
		final double w = state.getGridElementSize().getWidth();
		final double h = state.getGridElementSize().getHeight();
		if (symbol == SubStateSymbolEnum.SUBSTATE) {
			double cW = drawer.getStyle().getFontSize() * 1.6;
			double cH = cW * 0.4;
			double cR = cW * 0.15;
			double connectorW = cH;
			drawer.drawRectangleRound(w - DIST_RIGHT - cW, h - DIST_BOTTOM - cH, cW, cH, cR);
			drawer.drawRectangleRound(w - DIST_RIGHT - cW - cW - connectorW, h - DIST_BOTTOM - cH, cW, cH, cR);
			drawer.drawLine(w - DIST_RIGHT - cW - connectorW, h - DIST_BOTTOM - cH / 2, w - DIST_RIGHT - cW, h - DIST_BOTTOM - cH / 2);
			drawer.setDrawDelayed(false);
			drawer.setBackgroundColor(prevBackgroundColor);
		}
	}

}
